|Publication number||US4724976 A|
|Application number||US 07/002,066|
|Publication date||16 Feb 1988|
|Filing date||12 Jan 1987|
|Priority date||12 Jan 1987|
|Publication number||002066, 07002066, US 4724976 A, US 4724976A, US-A-4724976, US4724976 A, US4724976A|
|Inventors||Alfredo A. Lee|
|Original Assignee||Lee Alfredo A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (42), Classifications (7), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Several forms of collapsible containers are known, including those of the drinking cup style in which truncated conical bands are related for extension and collapse. Some types of containers rely on manipulation of latches, etc. for achieving collapsed and extended positions, the aims being primarily to vary volume, conserve space, etc. One form of container with latchable walls is found in the U.S. Pat. No. 2,518,343, to Lindstrom which is in the form of a typical lunch box having variable-volume lower parts and a fixed-volume top part for carrying an insulated beverage container, for example. In that patent, rather complicated latch means is provided in connection with changing the volume of the lower parts. Further, this latch means is operative from within the box and thus interferes with packing and unpacking the box contents.
According to the present invention, a simplified construction is provided, including latch means operative from outside the container and cooperative interengageable lip means for defining stops regulating the extent of relative vertical movement between the upper and lower container parts. The latch means is of the bias-projectable type that can be forcibly overridden when changing from collapsed condition to extended condition, and which may be manually depressed to enable return to collapsed condition. A further object is to provide interfitting lips respectively on the movable parts, which engage to effect a substantial seal or seal-like relationship in the extended mode of the container.
Further features and advantages of the invention will appear as a preferred embodiment thereof is disclosed in detail in the ensuing description and accompanying sheet of drawings.
FIG. 1 is a perspective of a representative form of container to which the invention may be applied.
FIG. 2 is an enlarged view, fragmentary in nature, showing cooperative wall parts of the upper and lower container parts as they appear in collapsed condition.
FIG. 3 is a similar view showing the parts in their extended mode.
FIG. 1 is representative of a container to which the invention is applicable. The container comprises an upper container part 10 and a cooperative lower container part 12, both of which may be composed of any suitable material, preferably having insulting properties as where the invention is employed with a beverage or like cooler. The upper part is shown as being closed by a removable cover 14. Although the structure is generally orthogonal in configuration, this is not a limitation on the invention, for many other shapes may be improved by the invention. Also, any form of means (not shown) may be used to attach the cover so that the entire unit may be carried via a top handle 16 or end handles 17.
In FIGS. 2 and 3, only portions of the walls of the container parts have been selected for purposes of illustration. To this end, then, the upper part 10 is shown as having an upright wall 18, which may be peripheral. This upper part has an open or no bottom because it must vertically telescopically receive the lower container part 12, a part of a wall 20 of which is shown as being closely parallel to and laterally or horizontally spaced from the upper wall 18. The spacing occurs because of lip structure to be defined. The container lower part has a closed bottom 22.
The lower part wall 20 has an upper edge portion including an integral lip 24 which projects laterally toward and closely fits the interior surface of the upper wall 18. Depending upon the nature of the total container as to use, type of contents, etc., the lip may be peripheral. In any event, the illustration shows what is involved, especially as to cooperation with the top wall in extension and collapse of the container. The under side of the lip is concave or recessed at 26 for purposes to presently appear. The upper part wall has upper and lower edge portions providing integral lips 28 and 30, respectively, that project laterally inwardly toward the lower wall 20. As best seen in FIGS. 2 and 3, the lower lip 30 rides the outer surface of the lower wall 20. When the parts are assembled, the upper lip 28 is above and the lower lip 30 is below the lip 24 on the lower wall 20. When the container parts are collapsed (FIG. 2) the under part of the upper lip rests on top of the lower wall lip 24. When the parts are extended, the upper portion of the upper wall lower lip 30, which is rounded at 32 to interfit with the concave configuration 26 of the lip 24, engages the lip 24 (FIG. 3). Thus the three lips cooperate to define stops or limits on relative vertical movement of the container parts. Of course, the dimensions of the elements may be varied to vary the extent of extension and collapse. The interfit of the lip portions 26 and 32 not only stabilizes the container parts when extended but may be exploited as a seal, especially when the lips are continuously peripheral.
In order to retain the container parts in extended mode, upper and lower releasable latch or lock means are provided, indicated generally by the numerals 34 and 35. In this case, the lower wall 20 has a horizontal upper bore 36 which slidably carries a cylindrical detent 38 backed up by a coil spring 40 which reacts again a plug 42 in the bore so as bias the detent in an outwardly projected position. The exposed under part of the detent is shaped as a cam 44 to enable the spring-loaded detent to be overridden by manual force applied to the upper container part when it is raised to extended position (FIG. 3). There may be several latches spaced about the container, depending upon the size, intended use, etc. of the container. As seen the projected detent engages under the upper wall lower lip and retains the raised position of the upper container part. When it is desired to collapse the container, the detent, being accessible from the outside of the container, is easily manually depressed and upper container part may be readily returned to collapsed condition (FIG. 2).
The lower or second means includes a spring-loaded detent 46 carried in a bore 48 in the wall 20 and projectable into a bore 50 in the wall 18. The cam on the detent 46 is reversed as respects that on the detent 38. A hole 52 is provided in the wall 18 to provide access to release the detent 46 when the box is collapsed.
Features and advantages of the invention, in addition to those noted above, will be readily apparent to those versed in the art, as will many modifications in the structure disclosed, all of which may be achieved without departure from the spirit and scope of the invention.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1299866 *||16 Oct 1916||8 Apr 1919||Robert M Smith||Detachable cover for centrifugal extractors.|
|US1934138 *||3 Jan 1933||7 Nov 1933||Paul Leon R||Dispensing can|
|US2517254 *||18 Apr 1947||1 Aug 1950||Steele Charles T||Camp heating and cooking stove|
|US2546452 *||30 Apr 1949||27 Mar 1951||Valentinas Kmieliauskas Valius||Telescoping drum|
|US2564862 *||7 Jan 1949||21 Aug 1951||Stopinski Sigmunt C||Container attachment for baby strollers|
|US3338388 *||3 Jun 1966||29 Aug 1967||Igoe Walter B||Collapsible wig case|
|US3426928 *||3 Nov 1966||11 Feb 1969||Caterpillar Tractor Co||Ejector mechanism for loader buckets|
|DD21757A *||Title not available|
|DD70356A *||Title not available|
|FR1015014A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5131212 *||23 Apr 1991||21 Jul 1992||Resource America, Inc.||Recycle shipping assembly|
|US5146732 *||10 Oct 1991||15 Sep 1992||Resource America, Inc.||Recycle shipping assembly|
|US5234121 *||23 Nov 1992||10 Aug 1993||Chen Win H||Telescoping containers|
|US5247747 *||10 Oct 1991||28 Sep 1993||Resource America, Inc.||Recycle shipping container|
|US5456061 *||2 Jun 1993||10 Oct 1995||Resource America, Inc.||Recycle shipping assembly|
|US5469691 *||2 Jun 1993||28 Nov 1995||Resource America, Inc.||Process for recycling a shipping container|
|US5513580 *||28 Feb 1994||7 May 1996||Franks; Curtis||Lockbox for installation in closets|
|US5579940 *||8 Dec 1995||3 Dec 1996||Weiss; Marla||Collapsible carrying case|
|US5641068 *||15 Jun 1995||24 Jun 1997||Hewlett-Packard Company||Adjustable and reusable protective packaging system|
|US5715962 *||16 Nov 1995||10 Feb 1998||Mcdonnell; Sandra J.||Expandable ice chest|
|US5738216 *||25 Feb 1997||14 Apr 1998||Hewlett-Packard Company||Adjustable and reusable protective packaging system|
|US5794414 *||5 Apr 1996||18 Aug 1998||Re-Source America I.P., Inc.||Recycle shipping assembly|
|US5878903 *||27 Aug 1997||9 Mar 1999||Ung; Lu-Hsiung||Extensible and extractable cargo container|
|US6010022 *||24 Apr 1997||4 Jan 2000||Buckhorn, Inc.||Dispensing box for flowable material|
|US6104867 *||16 Jun 1999||15 Aug 2000||The Dial Corporation||Method and apparatus for liquid vaporization|
|US6131376 *||3 Jun 1998||17 Oct 2000||Re-Source America Ip||Recycle shipping assembly|
|US6186275 *||6 Aug 1999||13 Feb 2001||LES HéLICOPTèRES CANADIENS LIMITéE||Basket transportable by helicopter for use on elevated cables or installations|
|US6189330||6 Jan 1999||20 Feb 2001||Campbell Soup Company||Container, system and process for shipping and storing food products and method for recycling shipping and storage containers|
|US6588616 *||19 Jun 2002||8 Jul 2003||Ming-Hui Ho||Wastepaper bin for a paper shredder|
|US6661967||23 Feb 2001||9 Dec 2003||The Dial Corporation||Variable temperature vaporizer|
|US6697571||11 Mar 2002||24 Feb 2004||The Dial Corporation||Method and apparatus for selective positioning a wick material in a vapor-dispensing device|
|US6792199||16 Jun 2003||14 Sep 2004||The Dial Corporation||Variable temperature vaporizer|
|US7086556 *||7 May 2004||8 Aug 2006||Trulove-Cranor Whitney A||Two-piece juice box holder|
|US7198154||9 Oct 2003||3 Apr 2007||Kimberly-Clark Worldwide, Inc.||Compressed package having an expansion mechanism|
|US7281616 *||23 Aug 2004||16 Oct 2007||Tumi, Inc.||Expandable luggage|
|US8616370||28 Oct 2010||31 Dec 2013||Arrows Up, Inc.||Bulk material shipping container|
|US8887914||30 Sep 2011||18 Nov 2014||Arrows Up, Inc.||Bulk material shipping container|
|US9016514||24 Jul 2014||28 Apr 2015||Inchbug LLC.||Beverage container holder|
|US20040071456 *||16 Jun 2003||15 Apr 2004||Levine Lawrence T.||Variable temperature vaporizer|
|US20050077200 *||9 Oct 2003||14 Apr 2005||Kimberly-Clark Worldwide, Inc.||Compressed package having an expansion mechanism|
|US20060027475 *||20 Jul 2005||9 Feb 2006||James Gleason||Tool storage and carrier assembly|
|US20060037823 *||23 Aug 2004||23 Feb 2006||Shep Peterson||Expandable luggage|
|US20120223081 *||6 Sep 2012||Jonathan Levin||Organizer Device with Three-Ring Binder Feature|
|EP1770012A1 *||28 Sep 2005||4 Apr 2007||Smurfit Kappa GmbH||Device for filling telescope containers in form of columns with granular materials, procedure for filling these containers and adapted container with cuts|
|EP1788903A2 *||19 Aug 2005||30 May 2007||TUMI, Inc.||Expandable luggage|
|WO1997021597A1 *||2 Dec 1996||19 Jun 1997||Marla Weiss||Collapsible carrying case|
|WO2000076292A2 *||13 Jun 2000||21 Dec 2000||The Dial Corporation||Liquid vaporization with housing stabilization system|
|WO2000076292A3 *||13 Jun 2000||12 Apr 2001||Dial Corp||Liquid vaporization with housing stabilization system|
|WO2005070772A1 *||6 Jan 2005||4 Aug 2005||Kimberly-Clark Worldwide, Inc.||Package for compressible products|
|WO2006023722A2||19 Aug 2005||2 Mar 2006||Tumi, Inc.||Expandable luggage|
|WO2012058059A1 *||18 Oct 2011||3 May 2012||Arrows Up, Inc.||Bulk material shipping container|
|WO2015040437A1 *||17 Sep 2014||26 Mar 2015||Tsamourgelis Iiias||Crate of multiple uses|
|International Classification||B65D6/00, B65D21/08|
|Cooperative Classification||B65D21/086, B65D11/10|
|European Classification||B65D11/10, B65D21/08C|
|17 Sep 1991||REMI||Maintenance fee reminder mailed|
|16 Feb 1992||LAPS||Lapse for failure to pay maintenance fees|
|21 Apr 1992||FP||Expired due to failure to pay maintenance fee|
Effective date: 19920216